Blue Boy Clematis vs Silky Lupine - TreeTime.ca

Blue Boy Clematis vs Silky Lupine

Lupinus sericeus

Clematis integrifolia Blue Boy

NOT AVAILABLE THIS SEASON - MIGHT RETURN

NOT AVAILABLE THIS SEASON - MIGHT RETURN

Silky Lupine
Blue Boy Clematis

Silky Lupine is a native perennial wildflower known for its upright spikes of blue to violet flowers. Blooming from late spring into summer, the nectar-rich, showy blossoms attract a variety of pollinators, especially bees and butterflies. The plant’s fine, silky foliage provides soft texture and visual interest, enhancing landscapes throughout the growing season.

Silky Lupine is a nitrogen-fixing plant that enriches soils and supports surrounding vegetation. Its deep roots stabilize soil, and it spreads naturally by ejecting seeds from drying pods. If spread isn’t desired, new seedlings are easy to remove. While it is foraged by some wild animals, it contains alkaloids that are toxic to livestock. Silky Lupine is well-suited to pollinator gardens, naturalization plantings, erosion control, and ecological restoration projects.

Blue Boy Clematis is a cold-hardy, fast growing, woody climbing vine. Hundreds of stunning steel-blue bell shaped flowers adorn the vine throughout the summer that droop and appear to hang in the air. The fibrous stems spread and create a fan-like symmetry shape.

This species will do best with support from a trellis, fence, or even other shrubs or tree stumps.

The Blue Boy Clematis was developed in Manitoba, Canada in 1947 by famous breeder Frank L. Skinner by crossing C. integrifolia x C. viticella, but it didn’t gain popularity until the 1990’s.

Silky Lupine Quick Facts

Blue Boy Clematis Quick Facts

Zone: 4a
Zone: 2b
Height: 0.6 m (2.0 ft)
Height: 3 m (10 ft)
Spread: 0.5 m (1.5 ft)
Spread: 0.6 m (2.0 ft)
Light: any
Light: partial shade, full sun
Moisture: dry, normal
Moisture: normal, wet
Growth rate: medium
Growth rate: medium
Life span: short
Life span: medium
Growth form: clump-forming
Spreading: seeds - high
Suckering: medium
Maintenance: medium

Toxicity: toxic to sheep and other livestock

Foliage: Silky-haired, palmately compound leaves
Flowers: Blue to violet pea-like flowers
Flowers: steel blue
Bloom time: mid to late summer
Hybrid: no
Hybrid: yes
Catkins: no
Catkins: no


Native to: AB, BC